Download full-text PDF

A statistical study on thermal side effects of ultrasonic mixing in a gas-liquid system

Conference Paper (PDF Available)  · February 2015with1,494 Reads
DOI: 10.13140/2.1.4913.9524
Conference: Conference: The 15 th Iranian National Congress of Chemical Engineering (IChEC 2015), At University of Tehran,Tehran,Iran
Arsalan Parvareh at Razi University
  • 13.51
  • Razi University
Ashkan Mohammadifar at Razi University
  • 4
  • Razi University
Mohammad Keyhani at Sahand University of Technology
  • 17.79
  • Sahand University of Technology
Reza Yazdanpanah at Amirkabir University of Technology
  • 2.55
  • Amirkabir University of Technology
Abstract
Mixing is a important part of any processes and gas-liquid mixing is one of the applicable mixing systems. So, enhancement of mixing performance under minimum energy consumption is a very interesting matter in mechanical and chemical processes. The present study has focused on deriving a energy losing equation in a ultrasonic gas-liquid mixing system based on different operative parameters such as gas flow rate (Q), time of mixing (t), applied nominal ultrasonic power (P), and cycle (T) using Design Of Experiments (DOE) and Response Surface Methodology (RSM). The ANOVA method was applied to clarify the main effective parameters and their interactions. Finally it was found that cycle of ultrasonic irradiation is the most important factor in the present process and after that power of irradiation and mixing time are important. Also, for interaction terms only Tt,TP,TQ and tP terms are extremely significant and PQ term is rarely significant and other intercation therms are not important. The quadratic terms T2 and t2 are significant.The research results suggest that controlling cycle can delimite the energy losing in ultrasonic mixing process.